[Moran was sufficiently irritated with having to wear the suits, plus his own actions while reaching the lighthouse, that he's been a bit slower than usual to gather information, but he is not slow to ponder what he has been given here.]

So... The common denominator in what has been altered by undead presence here seems to be time. It either passes too quickly, or not at all.

Each of these undead lords seem to have different effects on their surroundings. Unhalad with hunger, Anurr with cold... Then the Huntress seemed to make things decay in her wake, and what of the last one? Did anyone observe any effects on his surroundings?

And now time.

It's almost as if they're different species, and yet I remember the Merchant telling us Unhalad has 'brothers', and they are more powerful than he is.